Coupling device



Aug. 7, 1951 H. RAYMOND COUPLING DEVICE Filed Feb. 25, 1948 PatentedAug. 7, 1951 COUPLING DEVICE Henri Raymond, Guissalles by Vindelle,France Application February 25, 1948, Serial No. 10,844 In France March2'7, 1947 3 Claims.

1 In the closure of bottles and flasks in particular those used forcontaining drugs and the like,

covers or caps are used which are generallyformed of plastic materialand which are adapted to seal the mouth of the bottle through thecompression of a rubber or an agglomerated cork disk. Moreover such capsare formed with an inner screw-thread adapted to engage a complementarythread formed around the upper portion of the bottle neck.

However a large number of bottles or flasks do not comprise such ascrew-thread and the top of the neck terminates in an outer flange orshoulder portion. The means used so far for obtaining a tight seal forsuch containers generally make use of a cork stopper or the likeretained in place with string, wire or similar means.

- An object of my present invention is to provide a coupling devicewhereby screw-threaded caps may be mounted on bottles, flasks or othercontainers of any type. It is further applicable in other connections asin the coupling of two pipe elements for example.

Other objects and features of the invention will appear from the ensuingdisclosure made in reference to the accompanying drawing wherein:

Fig. 1 is a vertical cross-sectional view of a coupling device accordingto my invention, as applied to the closure of a bottle, thecross-section being made on line II of Fig. 2.

Fig. 2 is a view in horizontal cross-section on line IIII of Fig. 1.

Fig. 3 is a view in axial cross-section on line III-III of Fig. 4,showing a device according to the invention as applied to the joining oftwo pipes.

Fig. 4 is a view in transverse cross-section on the line IV--IV of Fig.3.

In the exemplary embodiment of my invention as shown in Fig. 1, thedevice is mounted on the neck of a bottle I. The top of the neck isformed with an outwardly projecting flange or shoulder 2 the under faceof which is adapted to abut an outwardly screw-threaded ring formed oftwo parts 3 and 4 separable lengthwise thereof. Said parts 3 and 4 areconnected and held in such condition by means of two lugs 5 and 6adapted to be gripped when mounting the device.

The threaded ring in this position is ready to receive thereon a cap Iinwardly screw-threaded so as to engage said threaded ring. Said capcarries a rubber or agglomerated cork disk 8 applied against the innerend wall of the cap (Fig. 1).

The outer portion of the cap is formed with 2 castellations 9 tofacilitate an efiicient clamping engagement thereof around the threadedring (Fig. 2).

To mount the device on a bottle, the user maintains both parts 3 and 4of the threaded ring applied against the neck of the bottle I by meansof the lugs 5 and 6, the ring being positioned against the under face ofthe shoulder 2 of the neck. It then only remains to screw the cap 1provided with its cork-disk onto the threaded portion of the ring so asto obtain a tight and perfectly safe seal.

The closure device thus produced forms a unitary assembly adapted to bequickly and cheaply manufactured to provide solid and rugged unitsadapted to be delivered for sale as easily as the ordinary threadedcaps.

Moreover, with range of gauges progressively varied according to thesize of the screw threads and the diameter of the bottlenecks, it willbe possible to provide a closure for flasks and bottles of all sizes andeven certain types of jars.

The use of a sufficiently resilient plastic material such as Celluloidmakes it possible to produce a unitary ring member which will simply beslotted along one side thereof so as to enable it to be distended asrequired.

My device has the further advantage of being adapted to replace thevarious strap closure means used so far for preserves in bottles orjars.

In the futher use of my invention illustrated in Figs. Sand 4, two tubesl0 and II, threaded (not necessarily with a common pitch) at their ends,are connected together through the device which herein comprises a nutring member separated in two parts I2 and I3. Said nut ring member isbored at its upper end to the diameter of the tubes to be joined. Theinner recess is provided with a screw thread It on which is engageablethe pipe II, the top of said ring engaging the shoulder formed by thethread of the pipe H3 or alternatively a groove formed on assembly bymeans of a. suitable tool. A seal 15 is interposed between the pipes toensure a tight seal after the ring is clamped thereon. The parts I2 andI3 are strongly pressed against each other by means of a clamp or collarH5 housed under the castellations ll of the ring so as to be preventedfrom sliding, and said collar being secured to said ring by means of abolt l8 which is adapted to strongly clasp the collar only after thering has been completely screwed onto the pipe I l.

The invention is not limited to the forms of embodiment described andillustrated which have been given merely by way of example. Withoutexceeding the scope of the invention, various modifications may be madein the details thereof. Thus in the pipe 10 of Fig. 3, the inner flangeof the ring l2-| 3 could be made to engag a shoulder formed in anysuitable way of the pipe I0. The lugs 6 in Fig. 1 or castellations 11 inFigs. 3 and 4 could be replaced by projecting elements of any suitableform adapted to make it easier during assembly to holdiboth partscomprising the connecting ring 3, 4 or I2, 13.

What I claim is:

1. A coupling device for coupling two pipe elements a first one of saidpipe elements having, an.

external screw thread at the coupling end thereof and the other elementhavinga'peripheral radial projection adjacent the coupling; endthereof,

comprising a ring member internally threadedl throughout a portion ofits length andadapted to threadedly engage said screw-thread of saidsaidring being divided REFERENCES CITED The following references are ofrecord in the file; of this-patent:

UNITED STATES PATENTS Number Name Date 15,802 Espy Sept. 30, 1856 87,146Cook Feb. 23, 1869 750,675 Michelin Jan. 26, 1904 1,001,069 Nielsen Aug.22, 1911 1,109,767 Larkin Sept. 8, 1914 1,825,062 Heaton et al Sept. 29,1931 2,474,431 Lipman et al June 28, 1949

